Home » Eclipse Projects » GEF » GEF Custom Figure / Draw2D / Label Problem
| GEF Custom Figure / Draw2D / Label Problem [message #247913] |
Wed, 25 March 2009 16:43  |
Eclipse User |
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Originally posted by: Unripe.web.de
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Hi everyone,
i have a stupid problem right know. I tried to write my own CustomFigure
instead of composing it. So far no problem everything works fine. But
when i try to create a label, add it to my Parent Figure and set the
setConstraint() Method either the damn thing wont show or the complete
thing blows up. I tried to test an example from an Eclipse-Plug-In book
and some from the net, nothing works.
The code in my paint Method looks like this, the add(label) is placed in
the constructor.
// draw the label
Rectangle r = getClientArea();
setConstraint(label, new Rectangle(r.x + 10, r.y + 10, r.width - 21,
r.height - 21));
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name="TestCustomFigure.txt"
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filename="TestCustomFigure.txt"
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.FreeformLayout;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.PointList;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.swt.graphics.Image;
public class TestCustomFigure extends Figure
{
private static final int FOLDED_CORNER_LENGTH = 12;
private Label label;
public TestCustomFigure() {
super();
label = new Label();
label.setTextAlignment(PositionConstants.LEFT);
add(label);
setLayoutManager(new FreeformLayout());
}
public void setText(String text) {
label.setText(text);
}
public void setImage(Image icon) {
label.setIcon(icon);
}
protected void paintFigure(Graphics g) {
super.paintFigure(g);
Rectangle r = getClientArea();
// draw the rectangle without the top left corner
g.drawLine(r.x, r.y, r.x + r.width - FOLDED_CORNER_LENGTH - 1, r.y); // top
g.drawLine(r.x, r.y, r.x, r.y + r.height - 1); // left
g.drawLine(r.x, r.y + r.height - 1, r.x + r.width - 1, r.y + r.height - 1); // bottom
g.drawLine(r.x + r.width - 1, r.y + FOLDED_CORNER_LENGTH - 1, r.x + r.width - 1,
r.y + r.height - 1); // right
// draw the label
setConstraint(label, new Rectangle(r.x + 10, r.y + 10, r.width - 21, r.height - 21));
// draw the folded corner
Point topLeftCorner, bottomLeftCorner, bottomRightCorner;
PointList trianglePolygon;
topLeftCorner = new Point(r.x + r.width - FOLDED_CORNER_LENGTH - 1, r.y);
bottomLeftCorner =
new Point(r.x + r.width - FOLDED_CORNER_LENGTH - 1, r.y
+ FOLDED_CORNER_LENGTH);
bottomRightCorner = new Point(r.x + r.width - 1, r.y + FOLDED_CORNER_LENGTH);
trianglePolygon = new PointList(3);
trianglePolygon.addPoint(topLeftCorner);
trianglePolygon.addPoint(bottomLeftCorner);
trianglePolygon.addPoint(bottomRightCorner);
g.setBackgroundColor(ColorConstants.lightGray);
g.fillPolygon(trianglePolygon);
g.drawLine(topLeftCorner, bottomLeftCorner);
g.drawLine(bottomLeftCorner, bottomRightCorner);
g.setLineDash(new int[] { 1 });
g.drawLine(bottomRightCorner, topLeftCorner);
}
}
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| Re: GEF Custom Figure / Draw2D / Label Problem [message #247923 is a reply to message #247913] |
Thu, 26 March 2009 14:29  |
| Eclipse User |
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Originally posted by: Unripe.web.de
Ok, solved the "Not showing the Label" Problem...now the only thing is
that when i try to move the Figure, its getting begin to eternity.
Kevin schrieb:
> Hi everyone,
>
> i have a stupid problem right know. I tried to write my own CustomFigure
> instead of composing it. So far no problem everything works fine. But
> when i try to create a label, add it to my Parent Figure and set the
> setConstraint() Method either the damn thing wont show or the complete
> thing blows up. I tried to test an example from an Eclipse-Plug-In book
> and some from the net, nothing works.
>
> The code in my paint Method looks like this, the add(label) is placed in
> the constructor.
>
> // draw the label
> Rectangle r = getClientArea();
> setConstraint(label, new Rectangle(r.x + 10, r.y + 10, r.width - 21,
> r.height - 21));
>
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